Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Auto drain feature?

  1. Back To Top    #1

    Join Date
    Feb 2012
    Location
    Winston Salem NC
    Posts
    161

    Auto drain feature?

    Is it feasible to add an auto drain feature after construction? Honestly I never thought of it before or during, but now that we have had the pool all summer and I have had to go out in the rain several times to start a siphon, I am really interested in a method to drain automatically.

    Any thoughts?
    18x36 IG Vinyl. ~29k Gallons.
    Pentair CCP420 Cartridge Filter
    Pentair Inteli-flow VS Pump
    Hayward Goldline SWG
    Tigershark QC Robot

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,086

    Re: Auto drain feature?

    What kind of filter do you have?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3

    Join Date
    Feb 2012
    Location
    Winston Salem NC
    Posts
    161

    Re: Auto drain feature?

    Sorry.... It is a cartridge filter.
    18x36 IG Vinyl. ~29k Gallons.
    Pentair CCP420 Cartridge Filter
    Pentair Inteli-flow VS Pump
    Hayward Goldline SWG
    Tigershark QC Robot

  4. Back To Top    #4

    Join Date
    Feb 2012
    Location
    Winston Salem NC
    Posts
    161

    Re: Auto drain feature?

    From what I can tell, my best two options would be a submersable pump and manually put it in when needed, or adding a hose bib in the plumbing between the pump and filter. Although I believe since my equipment it below the surface of the water I could add a bib before the pump, which would prevent me from losing ALL the water should it be forgotten and left on?

    Man... I wish I would have though of this before hand! I never realized how often I would have to remove water from it.
    18x36 IG Vinyl. ~29k Gallons.
    Pentair CCP420 Cartridge Filter
    Pentair Inteli-flow VS Pump
    Hayward Goldline SWG
    Tigershark QC Robot

  5. Back To Top    #5
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,086

    Re: Auto drain feature?

    The hose bib after the pump is probably your best solution.

    There's no reason to worry about water level during a rain. Although it might seem like the pool will overflow and cause water issues, the reality is that a full IG pool is no different than an empty yard during a heavy rain. The only water that comes out is the amount of rain falling on the pool, which is exactly what you'd have on the yard without the pool.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  6. Back To Top    #6

    Join Date
    Feb 2012
    Location
    Winston Salem NC
    Posts
    161

    Re: Auto drain feature?

    I have not been worried about the water itself, but didnt know if there was a negative effect of the water level getting above the liner track. Sounds like structurally (speaking of the liner and track), there is no worries if the pool overflows?

    Thanks
    18x36 IG Vinyl. ~29k Gallons.
    Pentair CCP420 Cartridge Filter
    Pentair Inteli-flow VS Pump
    Hayward Goldline SWG
    Tigershark QC Robot

  7. Back To Top    #7

    Join Date
    Feb 2012
    Location
    Winston Salem NC
    Posts
    161

    Re: Auto drain feature?

    After a cold beverage, and thinking about it further, I came up with a new plan.... please let me know if you think this is a bad idea or not!

    Instead of putting the hose bib either before the pump (equipment is below the water level) or after the pump (before the filter), I think that changing a ball valve on the skimmer to a 3 way valve and adding a hose bib there makes the most sense. This would only put pressure on the poppet valve (for the hose bib assembly) when the ball valve was turned in a direction to do so.

    I may not even do a hose bib.... I may make the "third direction" a 2" PVC pipe that is burried underground and routed to where my back yard starts to drop off. THis would mean that all I have to do to lower water level would be turn the ball valve. I may also have to run the pump to depending on exactly where it comes out, and the water level, but that seems allot more simple. Also, going with 2" PVC should make dropping water level faster.....

    The run would be about 350-400' but would be simple enough with the tractor.

    THoughts?
    18x36 IG Vinyl. ~29k Gallons.
    Pentair CCP420 Cartridge Filter
    Pentair Inteli-flow VS Pump
    Hayward Goldline SWG
    Tigershark QC Robot

  8. Back To Top    #8
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,086

    Re: Auto drain feature?

    Any kind of tap on the suction side of the pump won't work unless it is below pool water level and the pump is off. If you open a valve on the suction side with the pump on, it draw air in rather than pumping water out.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  9. Back To Top    #9

    Join Date
    Feb 2012
    Location
    Winston Salem NC
    Posts
    161

    Re: Auto drain feature?

    Good point. It will (99% sure) end up below pool level, but adding a ball valve between the pump and the filter may make more sense.

    Thanks for the feedback....
    18x36 IG Vinyl. ~29k Gallons.
    Pentair CCP420 Cartridge Filter
    Pentair Inteli-flow VS Pump
    Hayward Goldline SWG
    Tigershark QC Robot

  10. Back To Top    #10
    East_Akl_Neil's Avatar
    Join Date
    Apr 2012
    Location
    Auckland, New Zealand
    Posts
    70

    Re: Auto drain feature?

    There has been an outlet put into the skimmer that goes down somewhere, definatly not something done at the factory. Seems to have a very small hole in it and I have no idea as to where it goes as yet. Will have a better idea as to where it goes in a month when I dig the area up to fix a suction leak.
    Late 1970's 39000L IG Concrete Pool with Vinyl Liner
    Austral FT55 Sand filter
    Hurlcon E170 Pump Brochure,Manual
    32-40mm Pipe work
    Living in beautiful New Zealand

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •